3M is investing $1.3million to expand its research center to develop and test tolling and public safety products, and customers can use it too. When 3M opened its Transportation Safety Research Center (TSRC) in the 1970s it was as an extension of its research facilities. More than a showcase for innovation, the center was—and continues to be—a dynamic outdoor laboratory where new traffic materials, systems, vehicle safety and public safety products are tested in real-world conditions. Now, with 3M expanding